Field drilling sample storage device
By designing pressurized flow and temperature control components for the field drilling sample storage device, the problem of parameter changes during core storage and transfer was solved, achieving stable preservation and accurate detection of the core.
Patent Information
- Application Number
- CN202520158139.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing core storage equipment cannot effectively maintain the initial state and morphology of the core, especially in the field drilling environment where it cannot provide uniform pressure and temperature control. This leads to changes in the parameters and characteristics of the core during storage and transfer, affecting the accuracy and quality of subsequent testing and analysis.
A field drilling sample storage device was designed, including a first cylinder, an elastic sample storage tube, a sealing connection seat, a sealing ring plate, and a plug. The device simulates the state of the rock core in the formation through a pressurization and flow guiding component and a temperature control component. A detachable sealed limiting cavity is used to isolate the rock core from the outside air. An adjustable pressurization mechanism and a temperature control component are used to maintain the stability and temperature of the rock core.
It effectively isolates the core from the outside air, simulates the compression state of the core in the strata, maintains the parameter characteristics and temperature state of the core, and improves the preservation stability of the core and the accuracy of subsequent detection and analysis.
Smart Images
Figure CN223703506U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to drilling and mining core sample storage equipment technical field especially relates to a field drilling sample storage device. BACKGROUND
[0002] With the increasing demand of human beings for underground mineral resources, uranium exploration, coalfield exploration, oil exploration and polymetallic exploration and other exploration work are also more and more intensive. In the process of geological exploration, core is a precious solid or semi-solid rock obtained by drilling means underground, which contains rich geological information and is the most important sample material for analyzing mineral distribution, mineral reserves and geological structure. Due to drilling technology, structural properties and the fragile characteristics of rock itself (such as fragile rock, coal seam, etc.), the core transferred to the surface by drilling tools is difficult to keep intact, and the core is prone to breakage or contact with air to change the original parameters and morphology of the core, so it is necessary to space the core to the ground and pressurize and seal the core, so as to restore the state parameters and structural morphology of the core in the original underground depth as much as possible, facilitate accurate experiments and analysis after the core is transferred, and ensure the accuracy and authenticity of the research and analysis.
[0003] However, the existing core storage equipment usually sets one or more containing half grooves for separate storage of core samples, but the storage structure cannot limit the core with high stability, which is prone to cause problems such as structural loose core or fragmentation when subjected to external impact, and cannot guarantee the integrity of the core. Especially, the existing core storage equipment cannot maintain the state of the core in the field drilling environment, cannot provide effective limiting pressure and temperature for the core sample, cannot simulate the state of the core in the stratum, and leads to the change of the characteristics and parameters of the core during storage and transfer, which cannot guarantee the accuracy and quality of subsequent detection and analysis. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a field drilling sample storage device which can effectively simulate and maintain the initial state and morphology of the core by pressurizing and temperature control preservation of the core, so as to solve the problem that the existing core storage equipment cannot limit the core with the state of wrapping, cannot guarantee the morphology of the core, especially cannot uniformly pressurize and control the temperature of the core, which leads to the change of the structural state and inherent parameters of the core, and is not conducive to the subsequent accurate and effective detection and research.
[0005] The utility model discloses a technical scheme is adopted: a kind of field drilling sample storage device, including the first cylinder of constructing outer protective shell, elastic sample storage pipe is coaxially inserted in the first cylinder, and the both ends of the elastic sample storage pipe are respectively limited its position in the first cylinder by the plugging connecting seat and the blocking ring plate in the first cylinder;Detachable connection can be inserted into its cylinder cavity and the inner ring hole of the blocking ring plate is plugged in the axial upper end of the first cylinder, plug is also provided in the axial lower end of the first cylinder, and the ring body gap between the first cylinder and elastic sample storage pipe can be communicated with pressurizing flow guide assembly and temperature control component for temperature adjustment of pressurized liquid flow.
[0006] According to a preferred embodiment, the plug includes a plugging cover, an elastic plug and an adjusting stud, wherein the elastic plug capable of plugging the inner ring hole of the blocking ring plate is centrally inserted on the end face of the plugging cover facing the first cylinder, and the adjusting stud is threadedly inserted on the end face of the plugging cover away from the first cylinder.
[0007] According to a preferred embodiment, a sealing gasket ring is provided on the end face of the plugging cover facing the first cylinder and embedded in the first cylinder, and an embedded slot accommodating the elastic plug is also provided on the end face, and a plurality of guide sliding grooves are provided on the groove side wall of the embedded slot.
[0008] According to a preferred embodiment, the elastic plug includes an inserted plug column, a supporting spring, a support plate and a guide sliding block, wherein one end of the inserted plug column is movably inserted into the embedded slot, and the inserted plug column is connected with the supporting spring on the insertion front end face; one end of the supporting spring away from the inserted plug column is connected with the support plate, and the plate body side edge of the support plate is circumferentially spaced apart and provided with the guide sliding block capable of being slidably inserted into the guide sliding groove.
[0009] According to a preferred embodiment, the pressurizing flow guide assembly includes a temperature-variable flat tube, an inflow pipe, an outflow pipe, a liquid flow driving unit and an adjustable pressurizing mechanism, wherein the temperature-variable flat tube is provided in the support bottom shell of the first cylinder, and the input end and the output end of the temperature-variable flat tube are respectively connected with the inflow pipe and the outflow pipe penetrating the shell wall of the support bottom shell, and the liquid flow driving unit capable of driving liquid flow directional flow is provided in the pipe body of the inflow pipe and / or the outflow pipe; the side surface of the outflow pipe is also provided with the adjustable pressurizing mechanism capable of pressurizing liquid flow.
[0010] According to a preferred embodiment, the inlet pipe is connected to the annular gap by penetrating the side wall of the first cylinder body near the plug, and the outlet pipe is connected to the annular gap by penetrating the bottom surface of the first cylinder body.
[0011] According to a preferred embodiment, the flow guide pipe of the adjustable pressurizing mechanism is connected to the outlet pipe, and the end of the flow guide pipe away from the outlet pipe penetrates the shell wall of the support bottom shell and is connected to the liquid storage cylinder arranged on the side of the first cylinder body.
[0012] According to a preferred embodiment, a piston body capable of changing the volume of the cylinder cavity containing liquid is inserted into the liquid storage cylinder, and the piston body is driven by a pressure regulating cylinder, wherein the pressure regulating cylinder is connected to the positioning plate arranged on the side of the first cylinder body, and the end of the pressure regulating cylinder away from the positioning plate is inserted into the liquid storage cylinder and connected to the piston body.
[0013] According to a preferred embodiment, the temperature control assembly comprises semiconductor heat exchange sheets and heating strips embedded in the variable temperature flat tube, and a heat dissipation fan capable of generating directional airflow to carry away the heat transferred by the semiconductor heat exchange sheets is arranged below the variable temperature flat tube.
[0014] According to a preferred embodiment, a plurality of variable flow strips parallel to the semiconductor heat exchange sheets and perpendicular to the direction of liquid flow are arranged on the inner wall of the tube body of the variable temperature flat tube away from the semiconductor heat exchange sheets.
[0015] The beneficial effects of the present application are:
[0016] The elastic sample storage pipe, the blocking connecting seat, the blocking ring plate and the plug can constitute a detachable sealed limiting cavity to perform isolated retention of the core column, thereby effectively isolating the core column from the contact with external air to avoid weathering, disintegration and other problems of the core, while effectively maintaining the parameter characteristics of the core column in the initial drilling stage, so as to facilitate subsequent accurate detection and analysis, and in particular, the plug can be adaptively abutted against the core column, so as to guarantee the stability of axial location and the adjustability of axial extrusion of the core column, and further improve the effect and stability of core storage. The pressurized flow guide assembly can constitute a closed loop liquid flow circuit with the annular gap between the first cylinder body and the elastic sample storage pipe, so that the liquid flow in the space can adjust the hydraulic pressure under the driving of the pressurized flow guide assembly, thereby being capable of providing adjustable extrusion force to the elastic sample storage pipe to effectively simulate the extrusion state of the core column in the stratum. The temperature control assembly can heat or cool the liquid flow according to requirements, so that the liquid flow can conduct heat or absorb heat to the core column, thereby synchronously adjusting the temperature state of the core column. The core column is axially adjustably abutted and radially wrapped and extruded, so that the core can be maintained in a similar stratum state, thereby improving the preservation stability of the core, avoiding loose or fragmentation of the core, and the synchronously simulated temperature state can further maintain the characteristics and parameters of the core during storage and transfer, and guarantee the accuracy and quality of subsequent detection and analysis. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 is a preferred structure schematic view of the field drilling sample storage device provided by the present application;
[0018] Fig. 2 is an axial cross-sectional schematic view of the first cylinder body of the preferred field drilling sample storage device provided by the present application;
[0019] Fig. 3 is an axial cross-sectional schematic view of the plug of the preferred field drilling sample storage device provided by the present application.
[0020] LIST OF REFERENCE NUMERALS
[0021] 1: first barrel; 2: elastic sample storage tube; 3: blocking connecting seat; 4: blocking ring plate; 5: plug; 6: pressure flow guide assembly; 7: temperature control assembly; 11: support bottom shell; 31: buffer protection pad; 51: blocking cover; 52: elastic plug; 53: adjusting stud; 511: sealing gasket ring; 512: embedded groove; 513: guide sliding groove; 521: plug-in plug column; 522: support spring; 523: support plate; 524: guide sliding block; 61: temperature change flat tube; 62: inlet pipe; 63: outlet pipe; 64: liquid flow driving unit; 65: adjustable pressure increasing mechanism; 611: flow change strip; 651: flow guide pipe; 652: liquid storage cylinder; 653: piston body; 654: pressure regulating cylinder; 655: positioning plate; 71: semiconductor heat exchange sheet; 72: heating strip; 73: heat dissipation fan. DETAILED DESCRIPTION
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the present application will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0023] The following will be described in detail in combination with the drawings.
[0024] Embodiment 1
[0025] The present application provides a kind of field drilling sample storage device, it includes first barrel 1, elastic sample storage tube 2, blocking connecting seat 3, blocking ring plate 4, plug 5, pressure flow guide assembly 6 and temperature control assembly 7.
[0026] According to Figs. 1-3In the shown specific embodiment, the first barrel 1 can build an outer protective shell to avoid the deformation caused by external impact directly acting on the rock mass. The elastic sample storage pipe 2 is coaxially inserted in the first barrel 1. The two ends of the elastic sample storage pipe 2 are limited in the first barrel 1 by the blocking connection seat 3 and the blocking ring plate 4 in the first barrel 1. Specifically, the insertion front end and the insertion tail end of the elastic sample storage pipe 2 are provided with the blocking connection seat 3 and the blocking ring plate 4, wherein the blocking connection seat 3 is also connected with the inner bottom surface of the first barrel 1, and the blocking ring plate 4 is installed in the barrel cavity of the first barrel 1 in a manner that it can block the opening end surface of the annular gap between the first barrel 1 and the elastic sample storage pipe 2. The plug 5 capable of plugging the inner ring hole of the blocking ring plate 4 is detachably connected to the axial upper end of the first barrel 1 and can be inserted into the barrel cavity. The pressurized flow guide assembly 6 capable of communicating with the annular gap between the first barrel 1 and the elastic sample storage pipe 2 and the temperature control assembly 7 for temperature adjustment of the pressurized liquid flow are also provided in the support bottom shell 11 at the axial lower end of the first barrel 1. The elastic sample storage pipe 2, the blocking connection seat 3, the blocking ring plate 4 and the plug 5 provided in the application can form a detachable sealed limiting cavity to isolate and hold the core column, thereby effectively isolating the core column from the outside air to avoid weathering, disintegration and other problems of the core, while effectively maintaining the parameter characteristics of the core column in the early stage of drilling and mining, to facilitate subsequent precise detection and analysis, especially the plug 5 can adaptably abut the core column to ensure the stability of the axial positioning and the adjustability of the axial extrusion of the core column, further improving the effect and stability of core storage. The pressurized flow guide assembly 6 provided in the application can form a closed loop liquid flow circuit with the annular gap between the first barrel 1 and the elastic sample storage pipe 2, so that the liquid flow in the space can adjust its hydraulic size under the drive of the pressurized flow guide assembly 6, thereby providing adjustable extrusion force to the elastic sample storage pipe 2 to effectively simulate the extrusion state of the core column in the formation. The temperature control assembly 7 provided in the application can heat or cool the liquid flow as needed, so that the liquid flow can conduct heat or absorb heat to the core column, thereby synchronously adjusting the temperature state of the core column.
[0027] Preferably, the bottom of the first barrel 1 is provided with a support bottom shell 11 capable of accommodating the pressurized flow guide assembly 6 and the temperature control assembly 7. Preferably, the outer side of the axial upper end opening of the first barrel 1 is also provided with an external thread capable of being threadedly assembled with the plug 5. Further preferably, the side of the support bottom shell 11 is provided with a gas guide opening capable of guiding the flow of cooling air to exchange heat with the outside air.
[0028] Preferably, one end of the elastic sample storage tube 2 is provided with an embedded collar, so that it can be nested on the blocking connector seat 3. Further preferably, the outer side of this end of the elastic sample storage tube 2 is also provided with a clamp or other limiting structure to ensure the stability of the nested connection. Preferably, the elastic sample storage tube 2 adopts a tube wall structure made of elastic material such as rubber sheet, and the inner wall of the rubber tube body is also coated with a coating that increases wear resistance and corrosion resistance. Preferably, the top end of the blocking connector seat 3 inserted into the elastic sample storage tube 2 is also provided with a buffer protection pad 31 abutting on the inserted front end surface of the core column. Specifically, the buffer protection pad 31 is made of corrosion-resistant and wear-resistant materials such as silicone and rubber, which can ensure the loading buffer protection of the core column while having a certain structural strength. Preferably, the inner ring surface of the blocking ring plate 4 is connected with the tube body end surface edge of the elastic sample storage tube 2, and the outer ring surface of the blocking ring plate 4 abuts on the inner side wall of the first cylinder 1. Specifically, the blocking ring plate 4 has a large thickness to ensure the stability and pressure-resistant stability strength of its connection and limiting, and to ensure that the gap space formed by the cooperation of the first cylinder 1 and the elastic sample storage tube 2 can effectively withstand the expansion force existing in the pressurized liquid while maintaining a high-quality sealed state, so as to ensure the stability and strength of the structure.
[0029] Preferably, the plug 5 includes a blocking cover 51, an elastic plug 52, and an adjusting stud 53. Preferably, a elastic plug 52 capable of blocking the inner ring hole of the blocking ring plate 4 is centrally inserted on the end surface of the blocking cover 51 facing the first cylinder 1. Preferably, an adjusting stud 53 capable of limiting the depth of the elastic plug 52 inserted into the blocking cover 51 is threadedly inserted on the end surface of the blocking cover 51 away from the first cylinder 1. The blocking cover 51 provided in the present application can be detachably assembled on the open end of the first cylinder 1, so that the elastic plug 52 can be aligned with the inner ring hole of the blocking ring plate 4 and inserted into the blocking ring plate 4, thereby blocking the port of the elastic sample storage tube 2 away from the blocking connector seat 3, realizing the limiting abutment and external isolation of the core column in the elastic sample storage tube 2, thereby avoiding the problems of weathering and disintegration of the core caused by the contact of the core column with the external air. The elastic plug 52 can be driven by the adjusting stud 53 to abut on the end surface of the core column in a pressurized manner, so that the core column can have a certain axial pressure to simulate the axial stress state of the core column in the formation.
[0030] Preferably, the blocking cover 51 can be sleeved on the inner side of the annular cover of the outer side wall of the first cylinder 1, which is provided with internal threads matching the external threads of the first cylinder 1. Preferably, a sealing gasket ring 511 embedded in the first cylinder 1 is provided on the end surface of the blocking cover 51 facing the first cylinder 1. Preferably, an embedded groove 512 accommodating the elastic plug 52 is also provided on the end surface. Further preferably, a plurality of ring-directionally spaced guide sliding grooves 513 are provided on the groove side wall of the embedded groove 512.
[0031] Preferably, the elastic plug 52 comprises a plug-in plug column 521, a support spring 522, a support plate 523 and a guide slider 524. Preferably, one end of the plug-in plug column 521 is movably inserted into the embedded groove 512. Preferably, a sealing ring capable of filling the gap between the plug-in plug column 521 and the embedded groove 512 is sleeved on the outer sidewall of the plug-in plug column 521, and the plug-in plug column 521 is connected with the support spring 522 on the front end face. Preferably, one end of the support spring 522 away from the plug-in plug column 521 is connected with the support plate 523. Preferably, the plate body side of the support plate 523 is annularly spaced apart and arranged with guide sliders 524 which can be slidably inserted into the guide sliding groove 513. Preferably, when the plug-in plug column 521 abuts against the end face of the core column, the support plate 523 away from the support spring 522 end is in limiting contact with the adjusting stud 53 which is screwed into the plugging cover 51 and extends into the embedded groove 512, so as to define the working position of the support plate 523 by adjusting the insertion length of the adjusting stud 53, thereby adjusting the length of the plug-in plug column 521 extending outside the embedded groove 512. The plug-in plug column 521, the support spring 522 and the support plate 523 provided in the present application can constitute an elastic abutting limiting structure, which can avoid the problem of excessive rigid pressure leading to excessive extrusion of the core and causing fracture and disintegration, thereby the elastic abutting limiting structure can further improve the limiting stability and axial buffering of the core in the accommodating cavity, while ensuring the strength and effect of axial pressure.
[0032] Preferably, the pressure flow guide assembly 6 comprises a variable temperature flat tube 61, an inlet pipe 62, an outlet pipe 63, a liquid flow driving unit 64 and an adjustable pressure mechanism 65. Preferably, the variable temperature flat tube 61 is arranged in the support bottom shell 11 of the first cylinder body 1. Preferably, the input end and the output end of the variable temperature flat tube 61 are respectively connected with the inlet pipe 62 and the outlet pipe 63 which penetrate the shell wall of the support bottom shell 11. Preferably, the liquid flow driving unit 64 capable of driving the liquid flow to flow directionally is arranged in the pipe body of the inlet pipe 62 and / or the outlet pipe 63. Preferably, the liquid flow driving unit 64 can be selected from KCS series micro liquid circulating peristaltic pump. Preferably, the side of the outlet pipe 63 is further provided with the adjustable pressure mechanism 65 capable of pressurizing the liquid flow. Further preferably, one end of the inlet pipe 62 away from the variable temperature flat tube 61 penetrates the side cylinder wall of the first cylinder body 1 close to the plug 5 and is connected with the ring gap; one end of the outlet pipe 63 away from the variable temperature flat tube 61 penetrates the bottom surface of the first cylinder body 1 and is connected with the ring gap, so that the variable temperature flat tube 61, the inlet pipe 62, the outlet pipe 63 and the ring gap form a closed loop circuit. The liquid flow driving unit 64 provided in the present application can adjustably change the liquid flow pressure in the closed loop circuit, so that the liquid in the ring gap can have adjustable hydraulic parameters, thereby effectively extruding the elastic sample storage tube 2 to radially apply extrusion force to the core column stored in the elastic sample storage tube 2, thereby effectively simulating the confining pressure state of the core column sample in the formation to improve the state strength and stability of the core during storage.
[0033] Preferably, the temperature-variable flat tube 61 is provided with a plurality of flow-changing strips 611 which are parallel to the semiconductor heat exchange sheets 71 and perpendicular to the liquid flow direction, and are arranged on the inner wall of the tube body of the temperature-variable flat tube 61 away from the semiconductor heat exchange sheets 71. The flow-changing strips 611 provided in the present application can change the cross-sectional size of the temperature-variable flat tube 61 in which the semiconductor heat exchange sheets 71 are embedded, so that the local speed of the liquid flow which flows directionally in the temperature-variable flat tube 61 can be changed according to the actual cross-sectional size of the temperature-variable flat tube 61, thereby continuously changing the relative position relationship between the liquid flow molecules and accelerating the heat exchange effect and efficiency between the liquid flow and the semiconductor heat exchange sheets 71.
[0034] Preferably, the flow guide pipe 651 of the adjustable pressurizing mechanism 65 is in communication with the outflow pipe 63. Further preferably, the flow guide pipe 651 is in communication with a liquid storage cylinder 652 arranged on the side surface of the first cylinder body 1, and the end of the flow guide pipe 651 away from the outflow pipe 63 penetrates the shell wall of the support bottom shell 11. Preferably, a piston body 653 which can change the volume of the cylinder cavity containing liquid is inserted in the liquid storage cylinder 652. Preferably, the piston body 653 can be driven by a pressure regulating cylinder 654. Specifically, the pressure regulating cylinder 654 is connected to a positioning plate 655 mounted on the side surface of the first cylinder body 1, and the end of the pressure regulating cylinder 654 away from the positioning plate 655 is inserted into the liquid storage cylinder 652 and connected to the piston body 653. Preferably, the pressure regulating cylinder 654 can be an electrically-driven inverted gas-liquid pressure cylinder with a model number of GTHB100. In use, the pressure regulating cylinder 654 changes the position of the piston body 653 in the liquid storage cylinder 652 by means of extension and contraction, so that the liquid in the liquid storage cylinder 652 is pressurized and injected into the liquid in the closed loop or the suction closed loop, thereby changing the extrusion strength of the liquid in the annular gap on the elastic sample storage pipe 2, and further adaptively providing different sizes of radial extrusion force on the core.
[0035] Preferably, the temperature control assembly 7 comprises semiconductor heat exchange sheets 71 and heating strips 72 embedded in the temperature-variable flat tube 61. Preferably, a heat dissipation fan 73 is arranged below the temperature-variable flat tube 61 to generate directional air flow to carry away the heat transferred by the semiconductor heat exchange sheets 71. Preferably, the semiconductor heat exchange sheets 71 are conventional semiconductor refrigeration sheets, the size and shape of which can be selected according to actual size requirements. The heating strips 72 are electric heating bands that can be cut or lengthened as required. The heat dissipation fan 73 is a micro axial fan of Model 2010, 2510, 3010, 4010, etc. Specifically, the heat absorbing end surface of the semiconductor heat exchange sheet 71 is in contact with the liquid flow in the temperature-variable flat tube 61, and the heat dissipation end surface is on the outside of the temperature-variable flat tube 61, so as to be transferred by the air flow generated by the heat dissipation fan 73. Preferably, the heating strips 72 are arranged on the two parallel inner tube walls of the temperature-variable flat tube 61 in a manner parallel to the variable flow strip 611 and downstream of the semiconductor heat exchange sheets 71. Preferably, a control chip and a storage battery are detachably arranged in the support bottom shell 11, so that the storage battery is electrically connected to the semiconductor heat exchange sheets 71, the heating strips 72, the heat dissipation fan 73, the liquid flow driving unit 64 and the pressure regulating cylinder 654 through the control chip, and the semiconductor heat exchange sheets 71 and the heating strips 72 of the temperature control assembly 7 are arranged in parallel in the electric circuit, so that the semiconductor heat exchange sheets 71 and the heating strips 72 can be cooled or heated as required. Preferably, the control chip can be a microcontroller of Model STM32F103RE. The storage battery can be a storage battery of Model NP7-12. In use, the temperature control assembly 7 is powered to the semiconductor heat exchange sheets 71 and the heat dissipation fan 73 or to the heating strips 72 as required, so as to cool or heat the liquid flow as required, so as to ensure the temperature environment of the core wrapped by the liquid flow and improve the stability of the core.
[0036] Embodiment 2
[0037] In a preferred embodiment, the control chip can also be connected with an external display and conventional monitoring elements such as temperature sensors and pressure sensors on the first barrel, so as to adjust the temperature and pressure according to the parameter data displayed on the external display. Specifically, the electrical elements in the foregoing content are electrically connected with the control chip and the storage battery, the control mode of the application is controlled by the control chip, the control circuit of the control chip can be realized by simple programming by those skilled in the art, the provision of the storage battery is also a common knowledge in the art, and the mechanical device of the application can only be protected, so the control mode and the circuit connection are not explained in detail.
[0038] The utility model is not limited to the above optional implementation, anyone can draw other various forms of product under the enlightenment of the utility model, but no matter make any change in its shape or structure, all the technical schemes falling into the scope defined by the utility model claims are within the protection scope of the utility model. The utility model specification and its drawings should be understood as illustrative rather than limiting the claims. The protection scope of the utility model is defined by the claims and its equivalents. In the full text, the features guided by "preferably" are only optional ways, and should not be understood as necessarily setting, so the applicant reserves the right to abandon or delete the relevant preferred features at any time.
Claims
1. A field drilling sample storage device, comprising a first cylinder (1) which constitutes an outer protective shell, characterized in that, an elastic sample storage tube (2) is coaxially inserted in the first cylinder (1), and the two ends of the elastic sample storage tube (2) define its position in the first cylinder (1) through a blocking connecting seat (3) and a blocking ring plate (4) in the first cylinder (1); a plug (5) capable of being inserted into the cylinder cavity to block the inner ring hole of the blocking ring plate (4) is detachably connected to the axial upper end of the first cylinder (1), and a pressurized flow guide assembly (6) capable of communicating with the annular gap between the first cylinder (1) and the elastic sample storage tube (2) and a temperature control assembly (7) for temperature adjustment of the pressurized liquid flow are further provided at the axial lower end of the first cylinder (1).
2. The field drilling sample storage device of claim 1, wherein, The plug (5) comprises a blocking cover (51), an elastic plug (52) and an adjusting stud (53), wherein, the elastic plug (52) capable of blocking the inner ring hole of the blocking ring plate (4) is centrally inserted into the end face of the blocking cover (51) facing the first cylinder (1), and the adjusting stud (53) is threadedly inserted into the end face of the blocking cover (51) away from the first cylinder (1).
3. The field coring device of claim 2, wherein, A sealing gasket ring (511) embedded in the first cylinder (1) is provided on the end face of the blocking cover (51) facing the first cylinder (1), and an embedded groove (512) accommodating the elastic plug (52) is also provided on the end face, a plurality of ring-directionally spaced guide sliding grooves (513) are provided on the groove side wall of the embedded groove (512).
4. The field coring device of claim 3, wherein, The elastic plug (52) comprises an inserted plug column (521), a supporting spring (522), a supporting plate (523) and a guide sliding block (524), wherein, one end of the inserted plug column (521) is movably inserted into the embedded groove (512), and the inserted plug column (521) is connected with the supporting spring (522) on the insertion front end face; one end of the supporting spring (522) away from the inserted plug column (521) is connected with the supporting plate (523), and the plate body side edge of the supporting plate (523) is ring-directionally spaced to be capable of slidably inserted into the guide sliding groove (513).
5. The field coring device of claim 4, wherein, The pressurized flow guide assembly (6) comprises a temperature-variable flat tube (61), an inflow pipe (62), an outflow pipe (63), a liquid flow driving unit (64) and an adjustable pressurizing mechanism (65), wherein, the temperature-variable flat tube (61) is provided in the supporting bottom shell (11) of the first cylinder (1), and the input end and the output end of the temperature-variable flat tube (61) are respectively connected with the inflow pipe (62) and the outflow pipe (63) penetrating the shell wall of the supporting bottom shell (11), the liquid flow driving unit (64) capable of driving the liquid flow to flow directionally is provided in the pipe body of the inflow pipe (62) and / or the outflow pipe (63); the side surface of the outflow pipe (63) is further provided with the adjustable pressurizing mechanism (65) capable of pressurizing the liquid flow.
6. The field coring device of claim 5, wherein, The inlet pipe (62) penetrates the side wall of the first cylinder (1) near the plug (5) and communicates with the annular gap far from one end of the temperature-variable flat tube (61). The outlet pipe (63) penetrates the bottom surface of the first cylinder (1) and communicates with the annular gap far from one end of the temperature-variable flat tube (61).
7. The field coring device of claim 6, wherein the sample container is a hollow tube having a closed end and an open end. The flow guide pipe (651) of the adjustable pressurizing mechanism (65) communicates with the outlet pipe (63), and the flow guide pipe (651) penetrates the shell wall of the support bottom shell (11) and communicates with the liquid storage cylinder (652) arranged on the side of the first cylinder (1) far from the outlet pipe (63).
8. The field coring device of claim 7, wherein the sample container is a hollow tube having a closed end and an open end. A piston body (653) capable of changing the volume of the cylinder cavity containing liquid is inserted in the liquid storage cylinder (652), and the piston body (653) can be driven by the pressure regulating cylinder (654). The pressure regulating cylinder (654) is connected to the positioning plate (655) arranged on the side of the first cylinder (1), and the pressure regulating cylinder (654) is inserted into the liquid storage cylinder (652) far from the positioning plate (655) and connected to the piston body (653).
9. The field coring device of claim 8, wherein, The temperature control assembly (7) comprises semiconductor heat exchange fins (71) and heating strips (72) embedded in the temperature-variable flat tube (61), and a heat dissipation fan (73) capable of generating directional airflow to carry away the heat transferred by the semiconductor heat exchange fins (71) is arranged below the temperature-variable flat tube (61).
10. The field coring device of claim 9, wherein, A plurality of variable flow strips (611) parallel to the semiconductor heat exchange fins (71) and perpendicular to the direction of liquid flow are arranged on the inner wall of the tube body of the temperature-variable flat tube (61) far from the semiconductor heat exchange fins (71).